Datasheet > AH1894-Z-7

AH1894-Z-7

更新时间： 2024-02-25 06:20:04

品牌	Logo	应用领域
美台 - DIODES		输出元件传感器换能器
页数	文件大小	规格书
13页	386K
描述
Hall Effect Sensor, 2mT Min, 5.5mT Max, 0.20-1.65V, Rectangular, Surface Mount, GREEN, SOT-553, 5 PIN

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AH1894-Z-7 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	GREEN, SOT-553, 5 PIN	Reach Compliance Code：	compliant
Factory Lead Time：	18 weeks	风险等级：	1.75
主体宽度：	1.2 mm	主体高度：	0.6 mm
主体长度或直径：	1.6 mm	滞后：	1 mT
JESD-609代码：	e3	最大磁场范围：	5.5 mT
最小磁场范围：	2 mT	安装特点：	SURFACE MOUNT
最大工作电流：	2.5 mA	最高工作温度：	85 °C
最低工作温度：	-40 °C	输出范围：	0.20-1.65V
输出类型：	VOLTAGE OUTPUT	封装形状/形式：	RECTANGULAR
传感器/换能器类型：	MAGNETIC FIELD SENSOR,HALL EFFECT	最大供电电压：	3.6 V
最小供电电压：	1.6 V	表面贴装：	YES
端子面层：	Matte Tin (Sn)	端接类型：	SOLDER
Base Number Matches：	1

AH1894-Z-7 数据手册

AH1894

PROGRAMMABLE HIGH SENSITIVITY

MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH

Description

Pin Assignments

The AH1894 is

a high sensitivity micropower magnetic range

selectable Omnipolar Hall effect switch IC with internal pull up and

pull down capability. Designed for portable and battery powered

equipment such as cellular phones and portable PCs to home

appliances and industrial applications, the average power

consumption is only 8uW at 1.85V. To support portable equipment the

AH1894 can operate over the supply range of 1.6V to 3.6V and uses

a hibernating clocking system to minimize the power consumption. To

minimize PCB space the AH1894 is available in small low profile

X1-DFN1216-4 and SOT553 packages.

(Top View)

X1-DFN1216-4

(Top View)

The output is activated with either a north or south pole of sufficient

magnetic field strength. The user can select one of two magnetic

sensitivity bands via the BSEL pin without the addition of any external

components allowing a flexible but small solution. The band select

can be hardwired or be changed on the fly via a logic source such as

a micro-controller. When the magnetic flux density (B) is larger than

operate point (Bop), the output will be turned on (pulled low) and held

until B is lower than release point (Brp).

SOT553

Features

Applications



Omnipolar Operation (North or South pole)

Programmable Operate and Release Points

Supply Voltage of 1.6V to 3.6V



Open and Close Detect for Cellular Phones

Holster or cover detect for cellular phones and Tablet PCs

Cover or Display Switches in Portable PCs

Digital Still, Video Cameras and Handheld Gaming Consoles

Door, Lids and Tray Position Switches

Micropower Operation

Chopper Stabilized Design Provides:

Superior Temperature Stability

Minimal Switch Point Drift

Level, Proximity and Position Switches

Contact-Less Switches in Home Appliances and Industrial

Applications

Enhanced Immunity to Physical Stress



No External Pull-up Resistors Required

Good RF Noise Immunity

-40°C to +85°C Operating Temperature

High ESD capability of 8kV (Human Body Model) on V_DD, GND

and OUTPUT Pins



Small Low Profile X1-DFN1216-4 and SOT553 Packages

Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

Halogen and Antimony Free. “Green” Device (Note 3)

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"

and Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

Typical Applications Circuit

Note:

4. C_INis for power stabilization and to strengthen the noise immunity, the recommended capacitance is 100nF typical.

1 of 13

July 2013

AH1894

www.diodes.com

Document number: DS35741 Rev. 1 - 2

12 3 4 5 6 7...13

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与AH1894-Z-7相关器件

型号	品牌	描述	获取价格	数据表
AH1895	DIODES	Micropower Omnipolar Hall Effect Switch	获取价格
AH1895-Z-7	DIODES	Hall Effect Sensor, 3.5mT Min, 8mT Max, 0.20-1.65V, Rectangular, Surface Mount, GREEN, SOT	获取价格
AH1897	DIODES	Micropower Omnipolar Hall Effect Switch	获取价格
AH1897-FA-7	DIODES	Analog Circuit, 1 Func, PDSO4, 1.60 X 1.20 MM, GREEN, DFN-4	获取价格
AH1897S	DIODES	Micropower Omnipolar Hall Effect Switch	获取价格
AH1898	DIODES	Omnipolar Operation	获取价格

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